Warning: Spoilers for Marvels Snapshots: Captain Marvel #1 ahead.
Everyone has heroes, including superheroes themselves, and Thing. It even seems that he might be more than just a hero to her... it looks like she's got a crush.
A majority of Earth's most well-known heroes weren't born with their powers. They were, for the most part, normal people who came into their powers later in life due to science, the supernatural, or what have you. Carol Danvers was just a girl who grew up in not the best of households and ed the Air Force to get away and make something of herself. Her heroes were the great pilots who came before her; but apparently there was one pilot-turned-hero she had, or rather has, a special affinity for.
After a young teen, Jenni Saito, decides to sneak out of the house after an argument with her mom, she ends up in the middle of a battle involving one of the heroes she has up on her wall: Captain Marvel. Jenni is in the midst of teen angst and pent up frustration over her situation at home, and basically tells the heroes about her jealousy over their lives and freedom. That's when Carol opens up about her life, how she didn't have the best home life either growing up, and how even she had her own heroes she looked up to. She specifically mentions the Fantastic Four and how she ired them for not hiding behind a mask, for owning who they are. But her true heroes were all pilots like her, with one particular pilot holding a special place in her heart.
In a flashback montage of her life, after talking about the Fantastic Four and her other heroes, there is a which shows Carol's old Air Force locker with a signed picture of the Thing taped up inside. He was the only one of the aforementioned heroes who got a place in her locker, and on top of that, when the comic cuts back to the conversation in the present, Carol is full-on blushing just thinking about it. Even Jenni notices. That kind of blush isn't generally reserved for someone a person simply looked up to once. That's the kind of blush that comes when a person who holds another level of iration for someone, a crush, both then and now.
For those sorts of feelings to have traversed the expanse of time from back when Carol Danvers was just an Air Force pilot, to the days of her being Captain Marvel, means that it has to be some sort of major crush she's been harboring. For much of the public, Ben Grimm became a sort of monster roaming the streets after the accident; a hero yes, but one that people tended to shy away from. For Carol Danvers, on the other hand, he was, and is, her idol. He was a successful pilot who became a hero and owned it, whether he wanted to or not. Apparently for Captain Marvel, that was all Ben needed to do to make her blush and grow distracted at the thought of him, even as a full-blown hero herself. Now, the only question left is... does she still have that poster somewhere?